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1. (WO1980000049) TRAVELLING WAVE TUBE ARRANGEMENTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1980/000049 International Application No.: PCT/GB1979/000100
Publication Date: 10.01.1980 International Filing Date: 08.06.1979
IPC:
H01J 23/087 (2006.01)
H ELECTRICITY
01
BASIC ELECTRIC ELEMENTS
J
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
23
Details of transit-time tubes of the types covered by group H01J25/88
02
Electrodes; Magnetic control means; Screens
08
Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
087
Magnetic focusing arrangements
Applicants:
Inventors:
Priority Data:
782655108.06.1978GB
Title (EN) TRAVELLING WAVE TUBE ARRANGEMENTS
(FR) TUBE GUIDE D"ONDES
Abstract:
(EN) Travelling wave tube with a periodic permanent magnet focusing system. Magnets (8a) of rare earth magnetic material with hubless pole pieces (5a) and pole piece spacers in the form of square section annular rings (7a) are utilised.
(FR) Tube guide d"ondes avec un systeme de mise au point a aimant permanent periodique. Des aimants (8a) en materiau magnetique de terres rares avec des pieces polaires sans moyeux (5a) et des elements d"espacement de ces pieces polaires ayant la forme d"anneaux a sections carrees (7a) sont utilises.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)